Mozilla Firefox
Windows
"C:\Program Files\Mozilla Firefox\firefox.exe" -P "My Profile" -no-remote
Mac OS X
/Applications/Firefox.app/Contents/MacOS/firefox-bin -p profileName
do shell script "/Applications/Firefox.app/Contents/MacOS/firefox-bin -p profileName"
open -a Firefox --args -no-remote -p profileName
About:config
about:cache
Custom cache path
In the URL type: about:config
Create a new string preference: browser.cache.disk.parent_directory and specify a path to your cache folder, e.g.: d:\Temp\Firefox
Addons
https://addons.mozilla.org/en-US/firefox/addon/adblock-plus
https://addons.mozilla.org/en-US/firefox/addon/greasemonkey/
https://addons.mozilla.org/en-US/firefox/addon/firebug/
https://addons.mozilla.org/en-US/firefox/addon/noscript/
https://addons.mozilla.org/en-US/firefox/addon/download-statusbar/
https://addons.mozilla.org/en-US/firefox/addon/web-developer/
https://addons.mozilla.org/en-US/firefox/addon/flagfox/
https://addons.mozilla.org/en-US/firefox/addon/speed-dial/
https://addons.mozilla.org/en-US/firefox/addon/imacros-for-firefox/
https://addons.mozilla.org/en-US/firefox/addon/colorzilla/
https://addons.mozilla.org/en-US/firefox/addon/live-http-headers/
https://addons.mozilla.org/en-US/firefox/addon/tineye-reverse-image-search/
https://addons.mozilla.org/en-US/firefox/addon/password-exporter/
https://addons.mozilla.org/en-US/firefox/addon/febe/
https://addons.mozilla.org/en-US/firefox/addon/measureit/
https://addons.mozilla.org/en-US/firefox/addon/html-validator/
https://addons.mozilla.org/en-US/firefox/addon/tree-style-tab/
https://addons.mozilla.org/en-US/firefox/addon/unhide-passwords/
https://addons.mozilla.org/en-US/firefox/addon/personal-menu/
https://addons.mozilla.org/en-US/firefox/addon/locationbar²/
https://addons.mozilla.org/en-US/firefox/addon/fission/
https://addons.mozilla.org/en-US/firefox/addon/tiny-menu/
https://addons.mozilla.org/en-US/firefox/addon/cleo/
https://addons.mozilla.org/en-US/firefox/addon/opie/
https://addons.mozilla.org/en-US/firefox/addon/gridfox/
https://addons.mozilla.org/en-US/firefox/addon/http-resource-test/
https://addons.mozilla.org/en-US/firefox/addon/stop-or-reload-button/